[Healeys] Core plugs seaping on a 3000

[Bob Spidell]

re: "I was thinking of putting some Radweld or similar magic goo into the coolant. I know it’s fairly effective in radiators.....might it work on the core plugs? 


I don't see why it wouldn't (IFF they actually work). All of the 'leak stoppers' are some form of suspended solid that fills leaking cracks, or a liquid that solidifies in said cracks. Plenty of debate as to whether they work--and whether they clog narrow passages or not--but we had a leak around a head bolt in our Ranger and put some in; it seemed to work with no side effects. That was years ago, we recently had to replace the radiator and did a complete flush--to remove transmission fluid--and I didn't see much if any gunk come out. 

Worth a shot, IMO. There's dozens of products; if you have a favorite, use it, if not then do some research online. My dad was a factory rep for Ford, and he says they used to throw a bottle of Bars Leaks into cars at service as a matter of practice. 

Bob 




Hi, 

I’m losing a little coolant – say 1 pint per 200 miles – from a pair of core plugs. (The two rear ones under the manifolds). 

No way to access them from above and I very much doubt if it can be done from below though I haven’t looked. I’ve got Webers and a big bore 6 branch so there’s not much room. 

OK, I’ll have to strip out the Webers and drop the exhaust; that’s a given. And, at the same time, I can do a few other little things. 

BUT, but....I don’t want to do it now. Not just when what we optimistically call our summer is just beginning. 

I hope to keep an eye on the loss and last it out until autumn. (Usually summer starts in June and autumn starts about a week later so I may not have much time). 

I was thinking of putting some Radweld or similar magic goo into the coolant. I know it’s fairly effective in radiators.....might it work on the core plugs? 

Simon 

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